summaryrefslogtreecommitdiff
path: root/sound/soc/sof/sof-of-dev.c
blob: 28a9692974e51d3522bb668f539107a7541d68da (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// Copyright 2019 NXP
//
// Author: Daniel Baluta <daniel.baluta@nxp.com>
//

#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/sof.h>

#include "ops.h"

extern struct snd_sof_dsp_ops sof_imx8_ops;

/* platform specific devices */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
static struct sof_dev_desc sof_of_imx8qxp_desc = {
	.default_fw_path = "imx/sof",
	.default_tplg_path = "imx/sof-tplg",
	.nocodec_fw_filename = "sof-imx8.ri",
	.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
	.ops = &sof_imx8_ops,
};
#endif

static const struct dev_pm_ops sof_of_pm = {
	SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
	SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
			   NULL)
};

static void sof_of_probe_complete(struct device *dev)
{
	/* allow runtime_pm */
	pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
	pm_runtime_use_autosuspend(dev);
	pm_runtime_enable(dev);
}

static int sof_of_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	const struct sof_dev_desc *desc;
	/*TODO: create a generic snd_soc_xxx_mach */
	struct snd_soc_acpi_mach *mach;
	struct snd_sof_pdata *sof_pdata;
	const struct snd_sof_dsp_ops *ops;
	int ret;

	dev_info(&pdev->dev, "DT DSP detected");

	sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
	if (!sof_pdata)
		return -ENOMEM;

	desc = device_get_match_data(dev);
	if (!desc)
		return -ENODEV;

	/* get ops for platform */
	ops = desc->ops;
	if (!ops) {
		dev_err(dev, "error: no matching DT descriptor ops\n");
		return -ENODEV;
	}

#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
	/* force nocodec mode */
	dev_warn(dev, "Force to use nocodec mode\n");
	mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
	if (!mach)
		return -ENOMEM;
	ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
	if (ret < 0)
		return ret;
#else
	/* TODO: implement case where we actually have a codec */
	return -ENODEV;
#endif

	if (mach)
		mach->mach_params.platform = dev_name(dev);

	sof_pdata->machine = mach;
	sof_pdata->desc = desc;
	sof_pdata->dev = &pdev->dev;
	sof_pdata->platform = dev_name(dev);

	/* TODO: read alternate fw and tplg filenames from DT */
	sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
	sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;

#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
	/* set callback to enable runtime_pm */
	sof_pdata->sof_probe_complete = sof_of_probe_complete;
#endif
	 /* call sof helper for DSP hardware probe */
	ret = snd_sof_device_probe(dev, sof_pdata);
	if (ret) {
		dev_err(dev, "error: failed to probe DSP hardware\n");
		return ret;
	}

#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
	sof_of_probe_complete(dev);
#endif

	return ret;
}

static int sof_of_remove(struct platform_device *pdev)
{
	pm_runtime_disable(&pdev->dev);

	/* call sof helper for DSP hardware remove */
	snd_sof_device_remove(&pdev->dev);

	return 0;
}

static const struct of_device_id sof_of_ids[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
	{ .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
#endif
	{ }
};
MODULE_DEVICE_TABLE(of, sof_of_ids);

/* DT driver definition */
static struct platform_driver snd_sof_of_driver = {
	.probe = sof_of_probe,
	.remove = sof_of_remove,
	.driver = {
		.name = "sof-audio-of",
		.pm = &sof_of_pm,
		.of_match_table = sof_of_ids,
	},
};
module_platform_driver(snd_sof_of_driver);

MODULE_LICENSE("Dual BSD/GPL");